一 代码
import tkinterimport tkinter.messageboximport tkinter.ttk#创建tkinter应用程序root = tkinter.Tk()#设置窗口标题root.title('Selection widgets')#定义窗口大小root['height']=400root['width']=320#与姓名关联的变量varName = tkinter.StringVar()varName.set('')#创建标签，然后放到窗口上labelName = tkinter.Label(root, text='Name:',justify=tkinter.RIGHT,width=50)labelName.place(x=10, y=5, width=50, height=20)#创建文本框，同时设置关联的变量entryName = tkinter.Entry(root, width=120,textvariable=varName)entryName.place(x=70, y=5, width=120, height=20)labelGrade = tkinter.Label(root, text='Grade:', justify=tkinter.RIGHT, width=50)labelGrade.place(x=10, y=40, width=50, height=20)#模拟学生所在年级，字典键为年级，字典值为班级studentClasses ={'1':['1','2','3','4'],'2':['1','2'],'3':['1','2','3']}#学生年级组合框comboGrade = tkinter.ttk.Combobox(root,width=50,values=tuple(studentClasses.keys()))comboGrade.place(x=70, y=40, width=50, height=20)#事件处理函数def comboChange(event):grade = comboGrade.get()if grade:#动态改变组合框可选项comboClass["values"]= studentClasses.get(grade)else:comboClass.set([])#绑定组合框事件处理函数comboGrade.bind('<<ComboboxSelected>>', comboChange)labelClass = tkinter.Label(root, text='Class:', justify=tkinter.RIGHT, width=50)labelClass.place(x=130, y=40, width=50, height=20)#学生年级组合框comboClass = tkinter.ttk.Combobox(root, width=50)comboClass.place(x=190, y=40, width=50, height=20)labelSex = tkinter.Label(root, text='Sex:', justify=tkinter.RIGHT, width=50)labelSex.place(x=10, y=70, width=50, height=20)#与性别关联的变量，1:男；0:女，默认为男sex = tkinter.IntVar()sex.set(1)#单选钮，男radioMan = tkinter.Radiobutton(root,variable=sex,value=1,text='Man')radioMan.place(x=70, y=70, width=50, height=20)#单选钮，女radioWoman = tkinter.Radiobutton(root,variable=sex,value=0,text='Woman')radioWoman.place(x=130, y=70, width=70, height=20)#与是否班长关联的变量，默认当前学生不是班长monitor = tkinter.IntVar()monitor.set(0)#复选框，选中时变量值为1，#未选中时变量值为0checkMonitor = tkinter.Checkbutton(root,text='Is Monitor?', variable=monitor,onvalue=1, offvalue=0)checkMonitor.place(x=20, y=100, width=100, height=20)#添加按钮单击事件处理函数def addInformation():result ='Name:'+ entryName.get()result = result +';Grade:'+ comboGrade.get()result = result +';Class:'+ comboClass.get()result = result +';Sex:'+('Man'if sex.get()else'Woman')result = result +';Monitor:'+('Yes'if monitor.get()else'No')listboxStudents.insert(0, result)buttonAdd = tkinter.Button(root, text='Add',width=40, command=addInformation)buttonAdd.place(x=130, y=100, width=40, height=20)#删除按钮的事件处理函数def deleteSelection():selection = listboxStudents.curselection()ifnot selection:tkinter.messagebox.showinfo(title='Information', message='No Selection')else:listboxStudents.delete(selection)buttonDelete = tkinter.Button(root, text='DeleteSelection',width=100, command=deleteSelection)buttonDelete.place(x=180, y=100, width=100, height=20)#创建列表框组件listboxStudents = tkinter.Listbox(root, width=300)listboxStudents.place(x=10, y=130, width=300, height=200)#启动消息循环root.mainloop()
二 运行结果
